yup , booting from the cd is the easiest way if the cd is bootable and the bootorder is set to boot from cd.
Best is A=floppie B=cd/dvd C=HD.
Have a look here for instruction to install win98 when booting of the cd:
http://www.windowsreinstall.com/win9...exfullpage.htm
And here for installing with the use of a bootdisk incase youre cd isn't bootable:
http://www.windowsreinstall.com/win9...exfullpage.htm
And if needed you can get a bootdisk from the link to bootdisk.com in my sig below.